Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 563 [Rate centres in NPA 563] [Dial plan for NPA 563]

NXX: 334

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-334 A Decorah IA IWCYIA70DS0  423H AIRUS, INC - IA 635      
563-334 0 Decorah IA   985E BANDWIDTH.COM CLEC, LLC - IA 635   2018-07-07   
563-334 1 Decorah IA   423H AIRUS, INC - IA 635   2018-03-31   
563-334 2 Decorah IA   423H AIRUS, INC - IA 635   2018-09-09   
563-334 3 Decorah IA   985E BANDWIDTH.COM CLEC, LLC - IA 635   2018-05-17   
563-334 4 Decorah IA   221F ONVOY, LLC - IA 635   2018-04-13   
563-334 5 Decorah IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 635   2018-07-23   
563-334 6 Decorah IA   8344 TELEPORT COMMUNICATIONS AMERICA, LLC - IA 635   2019-03-30   
563-334 7 Decorah IA   221F ONVOY, LLC - IA 635   2019-09-19   
563-334 8 Decorah IA   221F ONVOY, LLC - IA 635   2019-09-19   
563-334 9 Decorah IA   073H TELNYX LLC 635   2018-05-01   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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